Premium 10501
11-07-2000
P10501A07.DOC
draft
Maintenance instruction Premium 10501
Philips components
2000 Philips Electronics N.V. All rights reserved
Page 6
1. Introduction
Information given in this document should be followed with care. The VAM1254 applied in this CD
unit is a mechanism consisting of delicate optical, mechanical and electrical components. During
handling of the unit excessive mechanical forces on any part should be avoided and proper ESD
measures should be taken. Maintenance may be necessary on the optical lens and mechanical parts of
the sledge, depending on the use and environment the unit is used. It is advised that in the application
where the CD unit is used, measures are taken to avoid as much as possible that dust can come to the
lens due to e.q. air flow in the cabinet.
1.1
Handling of the unit
If the CD unit is disconnected from the application, proper ESD measures should be taken to avoid
damage of the electrical components. Use ESD bags for transportation, a grounded workbench and
wrist strap (1Mohm) in case of separating the PCB from the mechanism. Especial the laser is ESD
sensitive when not connected to the PCB.
Never touch the lens with your fingers, and avoid that grease from the mechanical parts is spoiled on
the lens.
Do not move the sledge by pushing it by hand, but moving the sledge by spinning the sledge motor
worm gear with your fingers.
